Structural floor element



FIG. 1 is a top plan view of the structural floor element;

FIG. 2 is a side elevational view, the opposite side being identical thereto;

FIG. 3 is a frontal plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a rear plan view thereof. 

The ornamental design for a structural floor element, as shown and described. 